Th-fronting

Common card · No. 413478

Th-fronting is the pronunciation of English ⟨th⟩ as ⟨f⟩ or ⟨v⟩. When th-fronting is applied, [θ] becomes [f] or [ɸ] (for example, three is pronounced like free) and [ð] becomes [v] or [β] (for example, further is pronounced like furver). (Here "fronting" refers to the position in the mouth where the sound is produced, not the position of the sound in the word, with the "th" coming from the tongue as opposed to the "f" or "v" coming from the more-forward lower lip.) Unlike the fronting of [θ] to [f], the fronting of [ð] to [v] usually does not occur word-initially. For example, while further is pronounced as furver, that is rarely pronounced as *vat, although this was found in the speech of South-East London in a survey completed 1990–1994. Th-fronting is a prominent feature of several dialects of English, notably Cockney, Essex dialect, Estuary English, some West Country and Yorkshire dialects, Manchester English, African American Vernacular English, and Liberian English, as well as in...

Read on Wikipedia